An increase in temperature results in. a. a decrease in the required activation energy while the reaction rate remains constant b. an increase in reaction rate due to a decrease in the kinetic energy of the reactants. c. an increase in the rate of reaction because reactant molecules collide with greater energy d. an increase in both the reaction rate and activation energy due to increased kinetic energy.

age range would be the answer

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.

acceleration = 18/3 = 6 m/s per second.

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